EVIDENCE FOR SUPERRADIANCE IN THE RECOMBINATION RADIATION FROM CdTe

Atta, Lynette B. Van; Picus, G. S.; Yariv, Amnon

doi:10.1063/1.1651909

Cited by 4 publications

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“…1) it can have a strong luminescence emission. Stimulated emission has been excited by optical pumping [38], by electron beam bombardment [39] and by impact ionization [40]. It can be doped both n-and p-type so the possibility of making lasers by minority carrier injection has been attempted [41] but has not been successful to date.…”

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Review of optical applications of CdTe

Bell¹

1977

Rev. Phys. Appl. (Paris)

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Résumé. 2014 Abstract. 2014 CdTe is a material potentially useful for a number of optical applications. These include electrooptic modulation, high power laser windows, electroluminescence and photoconduction. In this review these and other uses will be described. Particular attention will be paid to the various optical absorption mechanisms and the effects of impurities on the optical behavior. Section II.2: Optical applications of CdTe. a) Infrared optics, luminescence, photoconductivity.

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“…9. -Spectral narrowing for double-photon excitation of CdTe (after Basov et al [38] [40] have seen line narrowing occurring in n-type CdTe at room temperature. The recombination light emission was associated with breakdown at 12 kV/cm by impact ionization (Fig.…”

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Review of optical applications of CdTe

Bell¹

1977

Rev. Phys. Appl. (Paris)

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“…The modified Bridgman method was developed primarily to grow high-resistivity material for gamma detectors and optical modulators. It has been useful for growing material for the study of impact ionization (21) and superradiance (22) in CdTe where reproducibility is important. An example of this is in Fig.…”

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Growth of Semi-Insulating Cadmium Telluride

Kyle

1971

J. Electrochem. Soc.

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A modified Bridgman method for growing cadmium telluride is described. This method controls the composition of the melt, and thus the solid, by controlling the pressure of one of the components of cadmium telluride (CdTe) over the melt. The theory of equilibrium between solid-liquid-gas for this system indicates that the liquid acts only as a transferring medium between gas and solid. Thus the system may be treated as a gas-solid system with respect to defect chemistry. The synthesis and purification of CdTe is described in detail, and empirical results for producing large single crystals are given. Crystals grown by this system are compared with the defect chemistry presented by de Nobel. D. de Nobel (1) has shown that cadmium telluride (CdTe) can undergo stoichiometric deviations, and that such changes in composition are caused mainly by lattice defects which determine the conductivity Key words: crystal growth, cadmium telluride, semi-insulating cadmium telluride, II-VI compound, radiation detector material, modified Bridgman crystal growth, optical modulator material. ) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 169.230.243.252 Downloaded on 2015-02-08 to IP Vol. 118, No. 11 GROWTH OF SEMI-INSULATING CdTe 1791 I_ m L. A9 ) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 169.230.243.252 Downloaded on 2015-02-08 to IP * Electrochemical Society Active Member.cedures distinction can be made between the properties of weak spots in the insulator and those of the bulk (1). We have observed electrical switching in zirconia films, grown by thermal and anodic means on zirconium and a number of its alloys. Areas of impurity and intermetallic precipitates have been identified as ) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 169.230.243.252 Downloaded on 2015-02-08 to IP

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“…Light stimulated emission [49] and electron beam stimulated emission [50] has also been observed as well as recombination radiation [51 ] at high bias levels. It appears then that CdTe and its alloys could have significant application as electroluminescent materials in competition with GaAs and other III-V's, if indeed the killer and contact problems could be overcome.…”

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confidence: 99%

Applications of CdTe. A review

Wald¹

1977

Rev. Phys. Appl. (Paris)

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The review considers the history of CdTe in short form and delineates the applications potential for the compound. This potential is seen to arise on the one hand from a combination of various physical properties which is useful for several classes of electronic and particularly optoelectronic devices, and on the other hand from the fact that thin film fabrication and low cost starting materials could give it significant cost advantages over other semiconductors. The obvious lack of widespread application is traced to three fundamental problems : 1) Lack of control over minority carrier behavior ; 2) Erratic and non reproducible performance of thin films ; 3) Lack of good contacts to low resistivity p-type material. Some suggestions on further work in these areas are also advanced

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EVIDENCE FOR SUPERRADIANCE IN THE RECOMBINATION RADIATION FROM CdTe

Cited by 4 publications

References 4 publications

Review of optical applications of CdTe

Review of optical applications of CdTe

Growth of Semi-Insulating Cadmium Telluride

Applications of CdTe. A review

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